Hi @kennebel,
Welcome to the forum! Probably what you’re seeing is Polkit:
How do I prevent Polkit authentication dialogues from popping up when I start a ThinLinc session?
It normally makes sense to require a password for priviliged operations (updates, reboot, etc) on a multi-user system. Polkit is configurable though, so you should be able to change this behaviour if you want. There is an example for color-manager in the post linked above, but if you manage to come up with any other useful Polkit rules then please feel free to post them in the comments there.
Hope that helps!